Insulation of walls from the inside with mineral wool plus drywall is an extremely popular method of thermal insulation, pursuing 2 goals at once: preserving heat in the house and preparing the walls for further decoration.
Warming options for brick and wooden houses
Warming at home can be done in different ways:
- by filling the air gap of the brick wall with polystyrene foam or mounting foam;
- by external sheathing of the facade with polystyrene foam and mineral wool;
- through internal thermal insulation.
Both in stone and in wooden private houses, there should be not only internal insulation, but also external, because only together they can provide reliable and high-quality insulation of the house. Nevertheless, there are cases when it is not possible to make external thermal insulation, in which case the only option may be internal insulation of the walls with mineral wool with plasterboard lining.
The reasons why developers resort to thermal insulation from inside the building can be as follows:
- insufficient distance between individual buildings;
- a ban on changing the external appearance of the facade (if, for example, the house has historical or any other value);
- fatal defects of the facade;
- the fit of the facade walls to non-residential premises of a technical nature (elevators, flights of stairs).
Mineral wool: features, advantages and disadvantages of the material
Mineral wool is the most commonly used insulation material. Such popularity is due to the high level of thermal insulation qualities of the material against the background of its low cost.
The material has many advantages.:
- the structure of the mineral wool is fibrous, i.e. it has air layers that improve thermal insulation;
- mineral wool prevents the penetration of noise and vibration from the street;
- it is a "breathing" material;
- unlike polystyrene, rodents do not like mineral wool;
- lightweight, which makes working with it simple and quick;
- mineral wool is produced both in rolls and in plates, in addition, the structure allows you to lay it in several layers at once, which, in turn, significantly increases the thermal insulation characteristics;
- if, along with the internal insulation of mineral wool, external insulation of the wall was made, then you can not re-install the waterproofing;
- there is no need to use special fasteners, because the plate can simply be inserted into the frame.
Among the shortcomings of the material, it is possible to highlight the release of toxins during heating, as well as the need to use special respirators and protective clothing during styling, because its smallest particles can injure human mucous membranes.
Features of cladding and wall insulation of the house with drywall
Using gypsum plasterboards for wall cladding, you can simultaneously achieve the perfect microclimate in a wooden or any other private house, as well as leveling the surface of the walls for finishing.
Surprisingly, even on their own, without insulation material, drywall sheets can warm the house (of course, only if they are qualitatively strengthened and there are no gaps between the sheets). This property is inherent in drywall for the reason that it has low thermal conductivity - 8-10 times less than, for example, a reinforced concrete slab.
If you do not confine yourself to one drywall, but fix it on a metal frame and additionally install a mineral wool plate between the wall and the sheet, then the thermal insulation properties will increase several times more.
Additional materials
In addition to drywall and mineral wool, in order to insulate a wooden house, we need:
- vapor barrier film (or ordinary polyethylene film);
- breathable membrane or fleecy two-layer film that retains moisture;
- an antiseptic solution necessary for processing wooden surfaces of the frame (if a wooden, rather than a metal frame) is selected and the walls;
- a profile made of metal or wood (metal is better suited for drywall, because wood is too rotten);
- fasteners: dowels, screws for fixing the profile;
- adhesive tape for joining the vapor barrier, as well as staples and a stapler for attaching it.
Work technology
The whole process of thermal insulation can be divided into several stages, each of which is described below.
Preparation of the wall and treatment with an antiseptic, antifungal solution (if there is already mold on the surface of the wall, it must be washed with special solutions, and then dried with a construction hairdryer).
Create a wireframe.The frame can be either metal (galvanized metal profile), or made of wooden beams. Drywall is best mounted on a metal profile. The main thing is that the thickness of the metal profile is identical to the thickness of the insulation. In addition, the distance between horizontal and vertical rails should be equal to the size of the slab or roll of mineral wool.
Laying mineral wool in the space between the profile rails (it is best to select the slab in advance, if you take the roll, then it will have to be cut into pieces of a suitable size, with a small margin in case of further shrinkage).
A layer of vapor barrier lays on top of the mineral wool.
Drywall is attached, after which all joints between the sheets are carefully sealed.
Thus, warming the house with mineral wool and drywall is a very simple procedure, which can be mastered simply by following the instructions above.
Minvata in combination with drywall significantly reduces noise, which will greatly facilitate life in houses located in close proximity to entertainment points: bars, restaurants, metro lines.
In addition, the upper plasterboard layer is an ideal base for almost any finishing.